CVE-2021-21604
HIGHJenkins < 2.263.1 - Insecure Deserialization
Title source: ruleDescription
Jenkins 2.274 and earlier, LTS 2.263.1 and earlier allows attackers with permission to create or configure various objects to inject crafted content into Old Data Monitor that results in the instantiation of potentially unsafe objects once discarded by an administrator.
Scores
CVSS v3
8.0
EPSS
0.0083
EPSS Percentile
74.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Classification
CWE
CWE-502
Status
published
Affected Products (3)
jenkins/jenkins
< 2.263.1
jenkins/jenkins
< 2.274
org.jenkins-ci.main/jenkins-core
< 2.263.2Maven
Timeline
Published
Jan 13, 2021
Tracked Since
Feb 18, 2026